Wax-thread-sewing-machine attachment.



C. L. BATON. WAX THREAD SEWING MAcHmB ATTACHMENT. AYPLIOATION YILBD 0012.29, 1909.

Patented July 26,1910.

UNITED STATES PATENT oFEIcEL CLARENCE L. EATON, OF BOSTUN, MASSACHUSETTS, ASSIGNOR TO THOMAS G. PLANT, F BOSTON, MASSACHUSETTS.

W'AX-THRELD-SBYVING-MCHINE ATTACHMENT.

Specification of Letters Patent.

Yatented July 26, 1910.

Application Sled October 29, 19GB. Serial No. 525,297.

T 0 all "whom -t may concern:

.Be it .known that l, Comes-cs L. EATON, a citizen of the United States. residing at Boston, in the county of Sutl'olk and State of Massachusetts. have invented an lmprorement in lax-Thread-Sewing-Machine Attachments, of which the following description, in connection with the accompanyin drawings-is a specification, like numeras on the drawings representing like parts.

The invention herein to be described relates to attachments for wax thread sewin machines, and more articularly to suc machines as are emp oycd in sewingthe parts of boots and shoes.

The thread used by a wax thread sewing 4machine is ordinarily drawn from the source of sup ly and passed through a snit- 'able waxing evice by which it provided with a waxing composition. This waxing .composition may be formed of various ingredients,snch, for instance, as paratlin and resin, and, in order thatI they be properly applied to the thread as it passes through the waxing apparatus, such composition is ordinarily maintained in the liquid state,

various means having heretofore been cinployed to maintain this liquid condition by means of heat. As well understood by those skilled in the art, the means heretofore cmployed to the above ends have not been altogether satisfactory. On the one hand it is desirable that. the waxing composition be kept heated and in the liquid state, but its temperature should be maintained uniform far as possible and never allowed to reach the boiling point. lVhen the composition reaches the boiling point, it is liable to overflow from the waxing tank, and the ingre- Adicnts composing the composition are liable to become so far separated that a proper Waxing of the thread is not possible.

The present invention has for its object the provision of an attachment to a wax thread sewing machine that will overcome the objections heretofore exocrienced in this class` of devices and provide a Waxing apparatus which will be etlicient in operation and which, while applicable to any of the characteristic waxing tanks now in common use, will maintain the waxin,r composition at a sullicient'ly high temperature to insure proper a plie-ation of the wax to the thread, and at tie same time prevent the waxing composition from attainin an undesirable high temperature or ove owing from the Waxing tank.

ln the drawingsz-Fignre l. is a side view of any usual or desired form of Waxin tank which may be secured to a Wax thread sewing machine and used in connection therewith; and Fig. 2 is an end view thereof with parts broken away to' show the elements beyond.

The waxing tankl may be of' any usual or desired character, and preferably may be formed of cast metal provided with a. suitable supporting bracket 2 h which it may be secured to the frame o a wax thread sewing machine or elsewhere, as indicated in Fig. 1.

Disposed at the bottom portion of the waxing tank 1 there is a heating chamber 3 connected at one part by means of a pipe 4 with a source oi steam or hot air sup ly and at another portion provided with a ischarge pipe 5, as indicated in Fig. l. In' these respects, as Well also as with respect to the inlet 6 and outlet 7 for the thread 8 to be waxed, the waxing tank or attachment may be of any usual or desired character, and the Waxing composition' may bernaintained in a heated condition oy any suitable or desired means. it being understood that with` respect to these features the invention .is generally applicable.

In practice it has been found that the wax in the waxing tank frequently reaches the boiling point or at a temperature sutliciently high to cause the Waxin composition to bubble up and overflow. `vhen this occurs the operator may probably cut all the steam oli through the heat supply for a time, but in the meanwhile thc waxinv composition has attained an tindesirablcliigh temperature and has probably over-flowed from the waxing tr'xk onto the Hoor. The operator will then usually continue sewing skies until finally the waxing composition will 'become so far cooled as to not properly apply waz to the thread being used. These objection# able characteristics are overcome by the present invention which contemplates means', ap-A plicable to any usual form of waxing tank, to raise or agitate portions of the waning composition and prevent such composition attaining anundesirable high temperature, notwithstanding the fact that the heating medium may be constantly employed.

As one form of means to the above ends Yiiiovahie means acting to agitata the waxing the waxing tank 1 is provided with suitable bearings t), 10, in whieh is supported a `shaft 11 having Secured thereto a .series of bnekets 1L whieh dip into the waxing eoioposition in the tank and by rotation of said shaft stir the composition. in the tank and lift portions thereof from the tank and then. as the shaft Slowly revolves, said buekets pe mit the portions of the waxing eomposition raised by -tlieni and eooied somewhat to run bat-k into the tank.

As one nieans of operating the shaft 1i. said shaft is projet-ted through one side of the tank. as indieated in l"ig. l. 'and provided with a worin wheel lit wliieh is en gaged by a worin 14 on a suitable shaft t5. said shaft 15 being preferably provided with a elnteh member tti adapted to engage a eoniplenientaleluteli iiieiiiher 1T eonneeted to a pulley 1H. or other means. which may be driven from a suitable soui'ee of power. The eluteli members may be eaiised to engage by `suitable hand operating devices. as thel wheel 1*. Secured to the hub of the driving pulley is.

Obviously many rhanges may be made in the general forni andA eliaracter. both of the tank, li lating means forthe waxing eoniposition. and the driving or operating deviees for the eooling buekets: and it will be elearly apparent that the tooling buekets ma)1 he.

. operated in any manner dess'ired` the eliarae teristies of the invention in thi,C respeet heiiig that they be eonstrueted so'that when in ope 'ation they will dip down into the waxing eomposition and lift portioiisthereof from the tank. thereby enabling sueh portions to beeoine eooled to some extent, and then permit sueh portions to run'baek into ly thisl eliaraeteristie operation it will be noted that not only is the waxing eoiiiposition kept thoroughly mixed. but it is prevented from attaining a temperature ealeulated to injure the waxing eomposition or eanso it to overflow from the tank.

t l I i The invention is not restrieted to the pai'- i tieular eharaeter of eooling Inieketsor their e manner of operation. it being understood that the invention injits true seope is delinitely set forth by the etaiiris.

l. wax thread .sewing maehine attafhnient. eoniprising a waxing tank. means for supporting the waxing tank from the niaehine frani-f to permit the thread to be 'drawn through the tank as it is being waxed. nieans for heating the waxing eoniposition iii the tank to maintain it in lit;- itid eoiidition for eoatitig the thread. and movable means to prevent thewax eonstitn-A ents' from beeoining separated under the heating aetion of the heating means said eoiiiposition and maintain a proper waxing niixture at that part of the tank thioiigh whieli the thread to be waxed is passed.

wax tiireadssewing iiiaehine attaeiinient. comprising a waxing tank havingr :in inlet and outlet i'or the passage through the waxing tank ot tliiead to he waxed on its way to the said nia-thine. means. for heating the waxilig eoiiipositf'ni in the talik adjaeeiit the path ot' the thria-i through said tank to maintain the waxing eoniposition in proper liipiid ronditioii at said path for applieation to the thread to be waxed. a wax eool ing boeket. and means for eausitig it to dip into the v-:axiug tank above the path ot' the thread and eool the waxing eoniposition and maintain a proper waxing mixture at. the part of the tank through ,whit-li the thread passies.

21j .t wax thread `sewing iiiaeliine attaehnient. eomprising a waxing tank for holding waxing eomposition and having :i passageway therethrough for thread to be waxed. means for heating the waxing:r eoiii position in the tank to maintain itin iifpiid eonditioii for application to the. thread. a shaft. a bueket earried b v said shaft, means t'or operating the shaft to eause the lan-ke. to dip into the waxing composition :iii-d raise a portion thereof. and nii-ans for operatively eoiinevting and diseonneeting said operating means and'shaft.

4. wax thread sewing uiaehine attaehiiieiit. eomprisiiig an open tank for holding waxing eomposition and liaviug a passagway therethrough for the thread to be waxed. means for heating the waxing t-oniposition. a series of biiekets disposed above the path ofthe thread. alid means for moving said bnekets into and out ot the waxing eomposition above the thread.

wax thread sewing uiaeliine attaehi'ient. eoinpi'ising an open tank for holding waxing eompositiou and having a passageway therethrough for the thread to be waxed. means for heating the waxing eomposition. a seriea of bueket`` disposed above the path of the thread. means for moving said buekets iiitoand out ofthe waxiiigeoniposition above the thread. driving int-ans for operating said buekets` :ilid a elutt'h interposed between the driving means and burkets to eause the boekt-ts to be operated or remain :it rest as desired.

lu testimony whereof. I have signed my naine to this speeilieation. iii the present-e ot' two subseribing witnesses. 

